Repair Direct Line: +44 (0)1273 234189
Sales Direct Line: +44 (0)1273 234181

Adobe PDF Files

BSI Certificate
CAA Certificate
EASA Form 1
Capability Listings
C of C Form
Repair Report

Our accreditations to both BSI and UKCAA necessitate reliability, traceability and confidentiality, and clients can rest assured that they are receiving a service of the highest standard. HSL has already been approved by many of its airline customers via their QA audits and questionnaires. We are also an approved supplier for Airbus Helicopters.

We have completed a generic questionnaire form which complies with most company’s requirements. We believe that all your QA requirements for approving HSL as a quality supplier can be met from this section of our website. However, if you have any further specific questions to meet with your QA requirements please contact us.

HSL is regularly asked to complete customer’s quality approval questionnaires, to comply with their QA requirements. To increase efficiency and reduce our and your administration costs, all QA questionnaires and enquiries will be directed to this web page where you can inspect or download all our QA information.


Headset Services Limited is certified to ISO 9001:2008 by BSI and UK CAA EASA Part 145 maintenance organisation approved. HSL has a reputation as a quality organisation and supplier. Clients need to know that the products and services they are receiving can be relied upon and are of the highest possible standard. We aim to ensure this by our accreditation with external bodies, participation in external quality assurance schemes and our in-house quality policies and training.


EASA Part 145 United Kingdom Civil Aviation Authority (UKCAA). Reference No. UK.145.00541


ISO9001:2008 BSI Registration No. FM 630754. 'Quality Management System'

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The MEL Group

MEL Aviation Ltd acts
as the group's headquarters.
T: +44(0)1787 373282
F: +44(0)1787 310812
A: Laurence Walter House,
Addison Road, Sudbury,
Suffolk, CO10 2YW.
United Kingdom.


T: +44 (0)1273 234 181
F: +44 (0)1903 750 123
A: Unit 8, The Quoin Estate
73 Marlborough Road
Lancing Business Park
Lancing, West Sussex
BN15 8AD
United Kingdom.